EP 1794425 A1 20070613 - EFFICIENT BYPASS VALVE FOR MULTI-STAGE TURBOCHARGING SYSTEM
Title (en)
EFFICIENT BYPASS VALVE FOR MULTI-STAGE TURBOCHARGING SYSTEM
Title (de)
EFFIZIENTES BYPASS-VENTIL FÜR MEHRSTUFIGES TURBOLADERSYSTEM
Title (fr)
CLAPET DE DERIVATION EFFICACE POUR SYSTEME DE TURBOCHARGEMENT MULTI-ETAGE
Publication
Application
Priority
- US 2005031273 W 20050831
- US 60589804 P 20040831
- US 17392005 A 20050701
Abstract (en)
[origin: US2006042246A1] A turbocharger system includes first and second turbines arranged such that exhaust gas passes through the first turbine then the second turbine. A bypass channel is configured such that exhaust gas entering the channel passes only through the second turbine. A valve positioned in the bypass channel regulates the flow of gas therethrough. The valve accelerates a stream of gas and focuses the stream toward the second turbine such that a large part of the added velocity of the stream is preserved as it enters the second turbine. Operation of the valve may be controlled so as to maintain the valve in a closed position while exhaust gas pressure above the first turbine pressure is below a first threshold, to progressively open the valve as the pressure increases above the first threshold, and to maintain the valve in a full-open position while the pressure is above a second threshold.
IPC 8 full level
F02B 37/22 (2006.01); F01D 17/14 (2006.01); F02B 37/013 (2006.01); F02B 37/18 (2006.01); F16K 1/12 (2006.01); F16K 3/02 (2006.01)
CPC (source: EP KR US)
F01D 17/14 (2013.01 - EP US); F02B 37/004 (2013.01 - EP US); F02B 37/013 (2013.01 - EP KR US); F02B 37/18 (2013.01 - EP KR US); F02B 37/183 (2013.01 - EP US); F02B 37/22 (2013.01 - EP KR US); F16K 1/12 (2013.01 - EP US); F16K 3/0209 (2013.01 - EP US); F05B 2220/40 (2013.01 - EP US); Y02T 10/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2006026742A1
Citation (examination)
DE 19853360 A1 20000531 - DAIMLER CHRYSLER AG [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2006042246 A1 20060302; US 8387385 B2 20130305; EP 1794425 A1 20070613; JP 2008511796 A 20080417; KR 20070047847 A 20070507; WO 2006026742 A1 20060309
DOCDB simple family (application)
US 17392005 A 20050701; EP 05797732 A 20050831; JP 2007530385 A 20050831; KR 20077007401 A 20070330; US 2005031273 W 20050831